/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/AbilitySystemComponent.h
Returns an ability spec corresponding to given ability class. If modifying call MarkAbilitySpecDirty
[FGameplayAbilitySpec](API\Plugins\GameplayAbilities\FGameplayAbilitySpec) * FindAbilitySpecFromClass ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UGameplayAbility](API\Plugins\GameplayAbilities\Abilities\UGameplayAbility) > InAbilityClass ) const